﻿#region Copyright (c) 2003 - 2008, Andreas Mueller
/////////////////////////////////////////////////////////////////////////////////////////
// 
// Copyright (c) 2003 - 2008, Andreas Mueller.
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// Contributors:
//    Andreas Mueller - initial API and implementation
//
// 
// This software is derived from software bearing the following
// restrictions:
// 
// Copyright (c) 1994
// Hewlett-Packard Company
// 
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.  Hewlett-Packard Company makes no
// representations about the suitability of this software for any
// purpose.  It is provided "as is" without express or implied warranty.
// 
// 
// Copyright (c) 1996,1997
// Silicon Graphics Computer Systems, Inc.
// 
// Permission to use, copy, modify, distribute and sell this software
// and its documentation for any purpose is hereby granted without fee,
// provided that the above copyright notice appear in all copies and
// that both that copyright notice and this permission notice appear
// in supporting documentation.  Silicon Graphics makes no
// representations about the suitability of this software for any
// purpose.  It is provided "as is" without express or implied warranty.
// 
// 
// (C) Copyright Nicolai M. Josuttis 1999.
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
// 
/////////////////////////////////////////////////////////////////////////////////////////
#endregion


namespace NStl.Arithmetic
{
    /// <summary>
    /// Represents the operation of subtracting two elements.
    /// </summary>
    public static class Minus
    {
        /// <summary>
        /// Creates a functor that lets you subtract two <see cref="decimal"/> types.
        /// </summary>
        /// <returns></returns>
        public static IBinaryFunction<decimal, decimal, decimal> Decimal()
        {
            return Functional.PtrFun<decimal, decimal, decimal>(
                delegate(decimal lhs, decimal rhs) { return lhs - rhs; }
                );  
        }
        /// <summary>
        /// Creates a functor that lets you subtract two <see cref="int"/> types.
        /// </summary>
        /// <returns></returns>
        public static IBinaryFunction<int, int, int> Int32()
        {
            return Functional.PtrFun<int, int, int>(
                delegate(int lhs, int rhs) { return lhs - rhs; }
                );
        }
        /// <summary>
        /// Creates a functor that lets you subtract two <see cref="long"/> types.
        /// </summary>
        /// <returns></returns>
        public static IBinaryFunction<long, long, long> Int64()
        {
            return Functional.PtrFun<long, long, long>(
                delegate(long lhs, long rhs) { return lhs - rhs; }
                );
        }
        /// <summary>
        /// Creates a functor that lets you subtract two <see cref="short"/> types.
        /// </summary>
        /// <returns></returns>
        public static IBinaryFunction<short, short, short> Int16()
        {
            return Functional.PtrFun<short, short, short>(
                delegate(short lhs, short rhs) { return (short)(lhs - rhs); }
                );
        }
        /// <summary>
        /// Creates a functor that lets you subtract two <see cref="float"/> types.
        /// </summary>
        /// <returns></returns>
        public static IBinaryFunction<float, float, float> Float()
        {
            return Functional.PtrFun<float, float, float>(
                delegate(float lhs, float rhs) { return lhs - rhs; }
                );
        }
        /// <summary>
        /// Creates a functor that lets you subtract two <see cref="double"/> types.
        /// </summary>
        /// <returns></returns>
        public static IBinaryFunction<double, double, double> Double()
        {
            return Functional.PtrFun<double, double, double>(
                delegate(double lhs, double rhs) { return lhs - rhs; }
                );
        }
    }
}
